Environment & Climate Change

On March 26, the study group met for the first time to examine recent democratic progress and backsliding in African countries. The session focused on ongoing conflicts in different regions of Africa and examined their political underpinnings. Participants also discussed the role of third-party actors in supporting and facilitating conflict mediation and peacebuilding efforts in the continent. The study group counted with the presence of external expert guest Dr. Antje Herrberg, Chief of Staff of the European Union Capacity Building Mission in Niger (EUCAP Sahel Niger). Dr. Herrberg brings more than two decades of professional and personal experience in transition and conflict resolution, intractable conflict, and terrorism with a deep interest to alleviate the suffering of people. Furthermore, Florian Dirmayer, Master in Public Policy Candidate at Harvard Kennedy School, delivered a memo briefing on European Union Security Cooperation with Niger After the 2023 Military Coup.

India aims to become a leading producer of green hydrogen by the next decade as part of its broader industrial and decarbonization strategies. This brief provides an overview of India's current hydrogen strategy, as well as the challenges - land and water scarcity, infrastructure gaps, and financing gaps - that must be addressed in order for India to achieve its ambitious goals.

The Salata Institute for Climate and Sustainability at Harvard University launched today a major research and outreach initiative to reduce global methane emissions. The initiative seeks meaningful and sustained progress in global methane-emissions reductions through research and effective engagement with government policymakers — and with key stakeholders in business, nongovernmental organizations, and international institutions.

Renowned environmental economist Kathleen Segerson, who in addition to her academic and scholarly research and teaching has served on numerous state, national, and international advisory boards, expressed her frustration with the political polarization of climate policy in the latest episode of “Environmental Insights: Discussions on Policy and Practice from the Harvard Environmental Economics Program.” The podcast is produced by the Harvard Environmental Economics Program.

Visionary environmental regulator Mary Nichols, whose groundbreaking work as Chair of the California Air Resources Board (CARB) helped pave the way for many of the nation’s current environmental laws and regulations, shared her perspectives on her California and Washington D.C. experience during the latest episode of “Environmental Insights: Discussions on Policy and Practice from the Harvard Environmental Economics Program.” The podcast is produced by the Harvard Environmental Economics Program.

Low-carbon energy technology (LCET) startups could play a key role in accelerating India’s decarbonization. Yet, understanding of the LCET startup landscape and what shapes it remains low. This paper provides an analysis of the Indian LCET startup landscape to fill this gap.

The explosion of youth climate activism in recent years has focused the world’s attention on the problem like never before, but Michael Greenstone, the Milton Friedman Distinguished Service Professor of Economics at the University of Chicago, argues that young activists often err by trying to turn climate change into a moral issue rather than an environmental one. Greenstone shared his thoughts during the latest episode of “Environmental Insights: Discussions on Policy and Practice from the Harvard Environmental Economics Program,” a podcast produced by the Harvard Environmental Economics

In an essay for Harvard Kennedy School Magazine, Henry Lee argues the policies China is pursuing to wean itself off reliance on fossil fuels may also benefit its quest for greater energy security.

We used the US-TIMES energy-system model in conjunction with integrated assessment models for air pollution (AP3, EASIUR, InMAP) to estimate the consequences of local air pollutant (LAP) and carbon dioxide (CO₂) policy on technology-choice, energy-system costs, emissions, and pollution damages in the United States. We report substantial policy spillover: Both LAP and CO₂ taxes cause similar levels of decarbonization. Under LAP taxes, decarbonization was a result of an increase in natural gas generation and a near-complete phaseout of coal generation in the electric sector. Under a CO₂ tax, the majority of simulated decarbonization was a result of increased electric generation from wind and solar. We also found that the timing of the CO₂ and LAP taxes was important. When we simulated a LAP tax beginning in 2015 and waited until 2025 to introduce a CO₂ tax, the electric sector was locked into higher levels of natural gas generation and cumulative 2010–2035 energy system CO₂ emissions were 8.8 billion tons higher than when the taxes were implemented simultaneously. A scenario taxing CO₂ and LAPs simultaneously beginning in 2015 produced the highest net benefits, as opposed to scenarios that target either CO₂ or LAPs, or scenarios that delayed either LAP or CO₂ taxes until 2025. Lastly, we found that net benefits compared to business as usual are higher under a regional versus a national LAP-tax regime, but that efficiency gains under the regional tax are not substantially higher than those under the national LAP-tax policy.

Joshua Schwartz and Sabrina Arias write that although Congress seems unable to act, enough states, cities and counties are mobilizing to make a dent in U.S. carbon emissions. The states, cities, counties, and towns that have committed themselves to upholding the Paris agreement currently release a majority of U.S. carbon emissions. If they do manage to meet their targets, they can make a meaningful difference.